PIR sensor

  • Thread starter suryakalpo
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  • #1
suryakalpo
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I'm planning to design a PIR motion sensor. I wanted to know if I can use ordinary class-A amplifiers to amplify the output of the sensor which will be given to the alarm circuit. The transistor I'm planning to use is BC-547
 

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  • #2
berkeman
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I'm planning to design a PIR motion sensor. I wanted to know if I can use ordinary class-A amplifiers to amplify the output of the sensor which will be given to the alarm circuit. The transistor I'm planning to use is BC-547

Sure.

Is there a reason you wouldn't want to use a class-A amplifier topology? This is all low-power...
 

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